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Research Article Open Access
Spodoptera litura, an economically important polyphagous insect, is a serious threat to a large number of cultivated crops all over the world. In the present study, the quantitative analysis of protein in haemolymph, midgut, and fat body of the fifth instar larvae of Spodoptera litura was carried out by giving three different host plants as food materials. A comparative study of the tissue protein with respect to the feeding of host plant leaf protein was also carried out. The data obtained were statistically analysed using one-way ANOVA (P<0.01).The results revealed that there was a significant variation in the protein concentration in each tissue with respect to the feeding material. The haemolymph showed a higher concentration of protein than the mid gut and fat body. Similarly, the castor fed larval tissues showed a significantly higher concentration of protein than the tissues of colocasia and papaya fed larvae. A positive correlation was found in the protein content of the host plant leaves and the insect tissues.
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Author(s): T.P Najiya Beegum, K.R. Ranjini and K.D.Ranjini
Spodoptera litura, host plants, mid gut, haemolymph, fat body, protein concentration, Plant sciences and Environmental Sciences